抄録
Test of the linear relation between T_H and T_m was carried out for aqueous M(II)Cl_2 solutions (M(II)=Mg, Ca, Sr, and Ba). The linearity between T_H and T_m is excellent except the MgCl_2 solution. The linear relation does not hold for aqueous MgCl_2 solution in a stringent sense although it is a good approximation for describing the relation between T_H and T_m.
